We stayed at C. Elkamai for approximately 2 months. First, the apartment itself (absent the very hard mattress) was perfect in size and functionality. There’s a cooktop, microwave, electric tea kettle and refrigerator. Thus, if you wanted to buy groceries and fix your own meals it’s well appointed. More importantly, it is very conveniently located. There are two BTS lines (Ekkamai and Thong Lo) that are located within an easy 30 to 40 minute walk. There are also several grocery store options on Ekkamai and an excellent laundry service located on the first right after the small Post Office. Both Ekkmai and Thong Lo have a plethora of places to eat and Grab drivers are very familiar with C. Ekkmai. There’s also a 7-11 right next to the building and Kaizen Coffee (a bit pricey) is an excellent food and coffee shop.
I would definitely go back and recommend the apartment-with a mattress upgrade, of course.
Overall, a great experience.